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Subject: Minutes of the 5/20/2009 ChemSAC M eeting To: HED’s Chemistry Interest Group From: HED’s Chemistry Science Advisory

Council Attendance: Tom Bloem, Lee Cheng, Bill Cutchin, Nancy Dodd, Mike Doherty , Will Donovan (Chair) , George Kramer, Julie L angsdale, Rick Loranger, Dennis McNeilly , Thurston Morton, Meheret Negussie, Laura Nollen, Christine Olinger (M inutes) , Debra Rate, Bernie Schneider, D ave Soderberg ,. IR
- 4 Teleconference: Bill Barney , and Kathry n Homa. PMRA Teleconference: Jennifer Selwy n 1. Approve 4/29/09 minutes . These minutes had been previously discussed, but Will wanted additional comments from Rick Loranger on penthiopy

rad. Rick had not had sufficient time to review, but will send comments to Will directly . There was further di scussion on the geographical representation for item 3, the corn field trials for ULV formulations of azoxy strobin. The registrant wants to conduct all trials in Georgia. The ChemSAC concurred with the registrant proposal, provided that the three trials are trul y independent. For example, they shouldn’t prepare one batch of tank mix and apply it to three adjacent field s . 2. Miscellaneous ChemSAC Announcements The alphabetical food and feed vocabulary available at http://www.epa.gov/pesticides/foodfeed has recently

been updated. Bernie also noted that Canada has recently updated their crop groups, so he hopes to add the French names to the US food/feed vocabulary
. A summary table prepared by D. R ate (ARIA) summarizing the uses of chlorantraniliprole, and related SAC decisions, has been posted on the ChemSAC database
. ChemSAC members are encouraged to review this table and provide an y recommendations for changes to the SAC. 3 . S - metol a chlor and diquat dibromide use on Calendula officinalis : Food/Non - food decision (K. Homa, IR- 4)
. IR
- 4 has received a request from Neal Boughton, the Director of Agronom y for Technology Crops Ltd., based in Winston
- Salem, North Carolina, for the use of S
- metola chlor (PR# 10280) and diquat dibromide (PR# 10281) on Calendula officinalis
. Calendula officinalis , more commonly

known as English Marigold, or Calendula , is an annual flower that originated in southern Europe and the Eastern Mediterranean area. Currentl y, this plant is widely grown in the United States. This plant, with its large yellow to orange composite flowers, is also widely used as an ornamental. A member of the Asteraceae family , Calendula can also be used for medicinal aids and food purposes in cluding garnishes, flavorings and colorings. In addition, Calendula has recentl y gained popularity as an oilseed crop for industrial use. Oil from the Calendula can be used in a number of valuable non
- food use products including paints, coatings and some industrial nylon products. It can also be used as a replacement for Tung oil.Page 2 of 2

Due to the success of Calendula in Europe, contract production of Calendula is beginning in the United States and Canada. Currentl y, Technology Crops Ltd, a company that contracts the growing of man y specialty oil crops including high oleic sunflowers and high erucic acid rapeseed, is looking to contract the production of Calendula in the state of Minnesota. S
metolachlor is needed to control weeds during the growing season a nd diquat is needed as a dessicant to facilitate harvest
. According to IR
- 4, the Calendula crops grown in Minnesota will be grown for non
- food use only
. The oil will be extracted from the harvested seed and no component of the oil or residual meal will e nter the human or animal food chain. Meal will either be used for soil improvement purposes or will be incinerated. Therefore, IR
- 4 is requesting non
- food use status for the use of S
- metolachlor and diquat on Calendula. Be rnie has reviewed the Technolog y Crops Lt d. contract and agrees that the controls are sufficient to ensure that treated Calendula will not enter the human or livestock food chain. Based on the presumed effectiveness of the contract controls, the SAC recommended that IR
- 4 p lan for a Spe cial Local Needs (SLN) 24(c) registration in Minnesota, but should first ensure that application rates are not higher than uses on registered crops, to ensure that the existing rotational crop data , for both S
- metolachlor and diquat dibromide, will support this use. 4 . Revision s to Crop Group 20 : Oilseeds (B. Schneider) Bernie Schneider presented a proposed revision to Crop Group 20, adding Calendula officinalis (aka Calendula) as a member of this group, as well as the Sunflowers subgroup. It is an op portune time, as there is interest in this crop as noted in item 3 above, and establishment of Crop Group 20 previously discussed in ChemSAC will be published in the Federal Register shortly (ChemSAC minutes of 2/20/2007)
. As noted above, oil from Calendu la seeds has industrial, food, and cosmetic uses. Pest pressures are likel y to be similar as other oilseeds. Currently Calendula is grown in Minnesota, but expansion to other states with oil processing facilities is likely . PMRA noted that Calendula is being grown in several provinces in Canada, but has not yet been added to the Canadian crop groups. The ChemSAC concurred with Bernie’s proposal to add Calendula officinalis to the oilseed crop group 20. PMRA is currently amending their directi ves for crop groups 8 and 11, and they hope to modify their directive for crop group 20 at the same time or shortly thereafter
. 5 . Approve/edit 5/13/09 minutes . C. Olinger recommended adding a clarifying sentence to the item on endothall. There is an apparent di screpancy

between the statement in the second paragraph on the use of treated water for irrigation and the statement in the third paragraph recommending against treatment of irrigation ponds.